sweet, those are badass boats, well so the Trials of the Thunderbird bring to light a problem :p well not rly, pretty sure ive nailed what needs fixin, sputtering on total punching it, most likey thing seems to be coil, wire and or plugs

well the olds is in a state of repair atm, saving up for full set of struts, new rad, and the mounts that connect the body and such to the frame i do beleive are shot (have to be careful driving it atm, hitta pothole wrong and the cars bouncing itself outta a straight track :p)

as for the Thunderbird, never buy one if you dont want a new hobby hahha. if i punch it and push it past 5psi boost it staggers/bucks/ chokes, so time to start from the top and find the problem, coil/wires/plugs (proley the problem if they are gapped to much) then move into plugged exhaust, fuel line leak under heavy pressure, fuel pump (doubt its that, never starved under normal, only when past 6-7 psi of boost and the line of checks goes on and on and on, kinda funny tho, the car will still eat its fair share of Stangs and Camaro's in its "sick" stage